C Grade C
IQM Quantum Computers Emerald: Quantum Volume
2⁶ quantum volume
As stated in the source: “Quantum volume of 64”
Caveats
Company blog post with no method, data or measurement date.
Not used for rankings. Grade C: announcement-level evidence is shown with a warning and never ranked.
- Set-up
- Not stated.
- Method
- Standard
- Compared only with
- results in the group “standard”
- Measured
- Not stated
- Published
- 5 August 2025
- Measured by
- IQM Quantum Computers
- Independent of the maker
- No
- Peer-reviewed
- No
- Repeated by others
- Not yet
Source
New on IQM Resonance: IQM Emerald - almost 3x qubits for the same reliable quality, IQM Quantum Computers. Announcement.
Comparable results
| Machine | Value | Set-up | Published | Measured by | Grade | Record |
|---|---|---|---|---|---|---|
| Quantinuum H2 | 2²⁵ | standard | 3 Nov 2025 | Maker | B | r-000020 |
| Quantinuum H2 | 2²³ | standard | 12 May 2025 | Maker | C | r-000021 |
| IQM Quantum Computers Garnet | 32 | standard | 22 Aug 2024 | Maker | B | r-000042 |
| Quantinuum H1 | 2⁹ | standard | 2022 | Independent | A | r-000053 |
| IonQ Harmony | 8 | standard | 2022 | Independent | A | r-000054 |
| Rigetti Computing Aspen-M-1 | 8 | standard | 2022 | Independent | A | r-000055 |
History
- 27 October 2026: added
Spotted a mistake? Report an error, quoting r-000046.